Found the lost Apple MIDI Manager Docs.

There were supposed to be an SDK in Obsolete and Unsupported, but all the
links are bad or invalid.

So, using Google, I found them at this nice Mac MIDI and sound site.

http://www.hinton.demon.co.uk/mac/macmidi.html

Cool. Just download Apple DocViewer from the apple developer ftp site
(utilities) and you are good to go.

Right now, also, at http://www.opcode.com/downloads/

You can download StudioVision 4.5.1 and VisionDSP 4.5.1 as freeware. You
will need to seek out a file called Acadia for the sound engine, and also
an ASIO sound manager driver, if you didn't own it previously.

http://fm-music.com/v/text_target.html

has the Acadia engine and docs for the program.

http://www.griffintechnology.com/audio/drivers/ASIODriver.sit.hqx

has an ASIO driver for the Sound Manager.

The site is only valid for downloading after 8 PM CST and 6AM CST due to
network difficulties caused by the mob downloading rush.

DigiDesign also has their ProTools released as a freeware version, doing 8
track audio and sequencing, big download.

rc